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Your search keyword '"Pozniak, Curtis"' showing total 12 results
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12 results on '"Pozniak, Curtis"'

1. Mapping quantitative trait loci associated with leaf rust resistance in five spring wheat populations using single nucleotide polymorphism markers

Author

Bokore, Firdissa E, primary, Knox, Ron E., additional, Cuthbert, Richard D., additional, Pozniak, Curtis J., additional, McCallum, Brent D., additional, N’Diaye, Amidou, additional, DePauw, Ron M., additional, Campbell, Heather L., additional, Munro, Catherine, additional, Singh, Arti, additional, Hiebert, Colin W., additional, McCartney, Curt A., additional, Sharpe, Andrew G., additional, Singh, Asheesh K., additional, Spaner, Dean, additional, Fowler, D. B., additional, Ruan, Yuefeng, additional, Berraies, Samia, additional, and Meyer, Brad, additional

Published
2020
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2. High density genetic mapping of Fusarium head blight resistance QTL in tetraploid wheat

Author

Sari, Ehsan, primary, Berraies, Samia, additional, Knox, Ron E., additional, Singh, Asheesh K., additional, Ruan, Yuefeng, additional, Cuthbert, Richard D., additional, Pozniak, Curtis J., additional, Henriquez, Maria Antonia, additional, Kumar, Santosh, additional, Burt, Andrew J., additional, N’Diaye, Amidou, additional, Konkin, David J., additional, Cabral, Adrian L., additional, Campbell, Heather L., additional, Wiebe, Krystalee, additional, Condie, Janet, additional, Lokuruge, Prabhath, additional, Meyer, Brad, additional, Fedak, George, additional, Clarke, Fran R., additional, Clarke, John M., additional, Somers, Daryl J., additional, and Fobert, Pierre R., additional

Published
2018
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3. Genetic analysis of resistance to stripe rust in durum wheat (Triticum turgidum L. var. durum)

Author

Lin, Xue, primary, N’Diaye, Amidou, additional, Walkowiak, Sean, additional, Nilsen, Kirby T., additional, Cory, Aron T., additional, Haile, Jemanesh, additional, Kutcher, Hadley R., additional, Ammar, Karim, additional, Loladze, Alexander, additional, Huerta-Espino, Julio, additional, Clarke, John M., additional, Ruan, Yuefeng, additional, Knox, Ron, additional, Fobert, Pierre, additional, Sharpe, Andrew G., additional, and Pozniak, Curtis J., additional

Published
2018
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5. High-density genetic mapping of a major QTL for resistance to multiple races of loose smut in a tetraploid wheat cross

Author

Kumar, Sachin, primary, Knox, Ron E., additional, Singh, Asheesh K., additional, DePauw, Ron M., additional, Campbell, Heather L., additional, Isidro-Sanchez, Julio, additional, Clarke, Fran R., additional, Pozniak, Curtis J., additional, N’Daye, Amidou, additional, Meyer, Brad, additional, Sharpe, Andrew, additional, Ruan, Yuefeng, additional, Cuthbert, Richard D., additional, Somers, Daryl, additional, and Fedak, George, additional

Published
2018
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7. High density mapping and haplotype analysis of the major stem-solidness locus SSt1 in durum and common wheat

Author

Nilsen, Kirby T., primary, N’Diaye, Amidou, additional, MacLachlan, P. R., additional, Clarke, John M., additional, Ruan, Yuefeng, additional, Cuthbert, Richard D., additional, Knox, Ron E., additional, Wiebe, Krystalee, additional, Cory, Aron T., additional, Walkowiak, Sean, additional, Beres, Brian L., additional, Graf, Robert J., additional, Clarke, Fran R., additional, Sharpe, Andrew G., additional, Distelfeld, Assaf, additional, and Pozniak, Curtis J., additional

Published
2017
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8. QTLs associated with agronomic traits in the Attila × CDC Go spring wheat population evaluated under conventional management

Author

Zou, Jun, primary, Semagn, Kassa, additional, Iqbal, Muhammad, additional, Chen, Hua, additional, Asif, Mohammad, additional, N’Diaye, Amidou, additional, Navabi, Alireza, additional, Perez-Lara, Enid, additional, Pozniak, Curtis, additional, Yang, Rong-Cai, additional, Randhawa, Harpinder, additional, and Spaner, Dean, additional

Published
2017
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12. Single Marker and Haplotype-Based Association Analysis of Semolina and Pasta Colour in Elite Durum Wheat Breeding Lines Using a High-Density Consensus Map.

Author

N'Diaye A, Haile JK, Cory AT, Clarke FR, Clarke JM, Knox RE, and Pozniak CJ

Subjects
Alleles, Color, Discriminant Analysis, Genetic Loci, Genetic Markers, Genetics, Population, Genome, Plant, Least-Squares Analysis, Linkage Disequilibrium genetics, Phenotype, Principal Component Analysis, Quantitative Trait, Heritable, Breeding, Chromosome Mapping methods, Food, Genetic Association Studies, Haplotypes genetics, Polymorphism, Single Nucleotide genetics, Triticum genetics
Abstract

Association mapping is usually performed by testing the correlation between a single marker and phenotypes. However, because patterns of variation within genomes are inherited as blocks, clustering markers into haplotypes for genome-wide scans could be a worthwhile approach to improve statistical power to detect associations. The availability of high-density molecular data allows the possibility to assess the potential of both approaches to identify marker-trait associations in durum wheat. In the present study, we used single marker- and haplotype-based approaches to identify loci associated with semolina and pasta colour in durum wheat, the main objective being to evaluate the potential benefits of haplotype-based analysis for identifying quantitative trait loci. One hundred sixty-nine durum lines were genotyped using the Illumina 90K Infinium iSelect assay, and 12,234 polymorphic single nucleotide polymorphism (SNP) markers were generated and used to assess the population structure and the linkage disequilibrium (LD) patterns. A total of 8,581 SNPs previously localized to a high-density consensus map were clustered into 406 haplotype blocks based on the average LD distance of 5.3 cM. Combining multiple SNPs into haplotype blocks increased the average polymorphism information content (PIC) from 0.27 per SNP to 0.50 per haplotype. The haplotype-based analysis identified 12 loci associated with grain pigment colour traits, including the five loci identified by the single marker-based analysis. Furthermore, the haplotype-based analysis resulted in an increase of the phenotypic variance explained (50.4% on average) and the allelic effect (33.7% on average) when compared to single marker analysis. The presence of multiple allelic combinations within each haplotype locus offers potential for screening the most favorable haplotype series and may facilitate marker-assisted selection of grain pigment colour in durum wheat. These results suggest a benefit of haplotype-based analysis over single marker analysis to detect loci associated with colour traits in durum wheat., Competing Interests: The authors have declared that no competing interests exist.

Published
2017
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